package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.cache.annotation.Cacheable;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;


import javax.servlet.http.HttpSession;
import java.util.Map;

@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        String phone = user.getPhone();
        if (StringUtils.isNotEmpty(phone)){
            //生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);
            //将生成的验证码保存到session
            session.setAttribute(phone,code);
            return R.success("验证码验证成功");
        }

        return R.error("验证码验证失败");
    }


    @PostMapping("/login")
  //  @Cacheable(value = "userCach",key = "#user.id")
    public R<User> login(@RequestBody Map map,HttpSession session){
        log.info(map.toString());
        //获取前端传递的手机号和验证码
        String phone = map.get("phone").toString();
        String code = map.get("code").toString();
        //从Session中获取到手机号对应的正确的验证码
/*        String code1 = (String) session.getAttribute(phone);
        //进行验证码的比对 , 如果比对失败, 直接返回错误信息
        if (!code.equals(code1)){
            return R.error("验证码错误");
        }
        //如果比对成功, 需要根据手机号查询当前用户, 如果用户不存在, 则自动注册一个新用户
        LambdaQueryWrapper<User> lqw = new LambdaQueryWrapper<>();
        lqw.eq(User::getPhone,phone);
        User user = userService.getOne(lqw);
        User user1 = new User();
        if (user==null){
            user1.setPhone(phone);
            user1.setStatus(1);
            userService.save(user1);
        }
        //将生成的id存到session
        session.setAttribute("user",user1.getId());
        */
        Object codeInSession = session.getAttribute(phone);
        if (codeInSession != null && codeInSession.equals(code)){
            //如果能够比对成功，说明登录成功

            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);

            User user = userService.getOne(queryWrapper);
            if(user == null){
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
           // session.setAttribute("user",user.getId());
            redisTemplate.opsForValue().set("user",user.getId());
            return R.success(user);
        }
        return R.error("登录失败");
    }
}
